201022100222122 has 4 divisors (see below), whose sum is σ = 301533150333186. Its totient is φ = 100511050111060.

The previous prime is 201022100222089. The next prime is 201022100222213. The reversal of 201022100222122 is 221222001220102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 201017357007481 + 4743214641 = 14178059^2 + 68871^2 .

It is a super-3 number, since 3×201022100222122³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201022100222122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50255525055529 + ... + 50255525055532.

Almost surely, 2^{201022100222122} is an apocalyptic number.

201022100222122 is a deficient number, since it is larger than the sum of its proper divisors (100511050111064).

201022100222122 is a wasteful number, since it uses less digits than its factorization.

201022100222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100511050111063.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201022100222122 its reverse (221222001220102), we get a palindrome (422244101442224).

The spelling of 201022100222122 in words is "two hundred one trillion, twenty-two billion, one hundred million, two hundred twenty-two thousand, one hundred twenty-two".